Pump-rod coupling.



I PATENTED MAY 5, 1903.. 0. J. LE VALLEY & W. T. BIRD. I

PUMP'ROD COUPLING. APPLIOATION FILED JAN. 12. 1903.

N0 MODEL.

UNrrn STATES Patented May 5, 1903.

PATENT OFFICE.

CHARLES J. LE VALLEY AND WILLIAM T. BIRD, OF SHEFFIELD, IOWA.

PUMP-ROD COUPLING.

SPECIFICATION forming part of Letters Patent No. 727,548, dated May 5, 1903.

Application filed January 12, 1903. Serial No- 138,776. (No model.)

To rtZZ whmn it may concern.-

Be it known that we,'OHARLns J.LE VALLEY and WILLIAM T. BIRD, citizens of the United States, residing at Sheffield, in the county of Franklin and State of Iowa, have invented a new and useful Pump-Rod Coupling for Windmills, of which the followingis a specification.

Our object is to provide a simple, strong, and durable device specially adapted to be permanently fixed to a wooden rod connected with the crank of a windmill for reciprocating a pump-rod and also specially adapted for detachably connecting a pump-rod therewith, as required to facilitate making a pump operative and inoperative Whenever desired,

to serve as a clamp on the lower end of the wooden rod and to be fixed thereto by means of a bolt and to support alever adapted for operating a couplingpin pivotally connected with the lever. Fig. 3 is a side view that shows the two members connected. Dotted lines show the position of the lever when the coupling-pin is extended through the coupling. Fig. 4. is a perspective view of the upper end of a metal pump-rod. Fig. 5 is a side view, partly in section, that shows the relative positions of all the parts as required in practical use when the metal pump-rod is detachably coupled to the wooden rod that is to be reciprocated by the crank of a windmill.

The numeral designates the upper end portion of the metal coupling member, provided with bolt-holes for fixing it to a wooden red by means of bolts, as shown in Fig. 5, and 12 is the enlarged lower end, provided with an angular cavity 13, adapted to admit the upper end of a pump-rod. Ooinciding pin-holes in the double portions of the lower end adapt it to admit a coupling-pin to be extended transversely through the cavity, as shown in Fig. 5, for connecting a pump-rod therewith.

A metal clamp lat'is adapted in size and shape to be placed in right-angled position over the member 10, as shown in Fig. 5, to be permanently fastened to the wooden rod and the metal member 10 by means of a bolt 15, extended through the coinciding perforations in the part 12 and through the lower end of the Wooden rod 16, as shown in Fig. 5. By thus extending the wood through the clamp and the bolt 15 through the lower end of the wooden rod and at right angles relative to the bolts 17 the wooden' rod is clamped fast securely as required to prevent it from splitting and detaching from the coupling device when subjected to the strain and wear incident to operating a pump.

The free end portion of the clamp 14. is bifurcated, and the integral parts 18 serve as bearers for pivoting a double-curved lever 19 thereto and providing the lever with a weight 20 and pivoting a pin 21 to its lower end, so that the weight will by force of gravity retain the lever and pin in position, as shown in Fig. 5 and as required to detachably couple the metal rod 22 to the wooden rod 16 for utilizinga windmill for pumping water from a well.

To stop the operation of the pump when the windmill is in motion, it is only necessary to withdraw the pin 21 by placing the weighted lever 19 into position, as shown "in Fig. 3, where it will be retained by the weight, as required to hold the pin 21 in proper position to allow the flat perforated end of the pumprod 22 to enter the cavity 13 in the member 10 to be readily coupled to the wooden rod again whenever desired.

Having thus described the purpose of our invention, its construction, application, and operation, the practical utility thereof will be obvious to persons familiar with the art to which it pertains.

What we claim as new, and desire to secure by Letters Patent, is- I:

1. A pump-rod-coupling member consisting of a clamping device having two parallel extensions, provided with coinciding bolt-holes and adapted to be placed astride a wooden pump-rod and fastened thereto by means of a bolt and its other end bifurcated to serve as a bearer for a lever, a curved lever pivoted to said bearer, a fixed weight on the free end portion of the lever and a coupling-pin pivoted to said lower end of the lever for the purposes stated.

2. A pump-rod coupling comprising a metal member provided with bolt-holes at its upper end portion and a cavity at its lower end portion to admit the end of a pump-rod and provided with coinciding pin-holes, a metal member having parallel extensions at one end provided with coinciding pin-holes, and its other end bifurcated to serve as a bearer and a curved lever pivoted to said bearer and provided with a weight at its upper end portion and a coupling-pin pivoted to its lower portion, in combination with the lower end of a wooden rod and the upper end of a metal pump-rod, to operate in the manner set forth for the purposes stated.

CHARLES J. LE VALLEY. WILLIAM T. BIRD.

Witnesses:

W. H. J ONES, GEORGE ENDERS. 

